Recent advances in flexible iontronic pressure sensors: materials, microstructure designs, applications, and opportunities DOI
Jing Wang,

Yiqun Chen,

Shiwen Tu

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(36), P. 14202 - 14221

Published: Jan. 1, 2024

This review provides recent advances in flexible iontronic pressure sensors including strategies to enhance sensing performances and their applications discusses future directions for implementing these advancements practical applications.

Language: Английский

PDMS Film-Based Flexible Pressure Sensor Array with Surface Protruding Structure for Human Motion Detection and Wrist Posture Recognition DOI
Hao Zhang, Xiaoya Chen, Yan Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(2), P. 2554 - 2563

Published: Jan. 3, 2024

Flexible pressure sensors have been widely concerned because of their great application potential in the fields electronic skin, human–computer interaction, health detection, and so on. In this paper, a flexible sensor is designed, with polydimethylsiloxane (PDMS) films protruding structure as elastic substrate poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS)/cellulose nanocrystals (CNC) conductive-sensitive material. The has wide linear detection range (0–100 kPa), outstanding sensitivity (2.32 kPa–1), stability more than 2000 cycles. proven to be able detect human movements (finger bending, elbow etc.) small (breathing, pulse, etc.). addition, array can distribution judge shape object. A smart wristband equipped four designed. Among them, k-nearest neighbor (KNN) algorithm used classify data achieve high accuracy (99.52%) recognition seven kinds wrist posture. This work provides new opportunity fabricate simple, applications next-generation intelligent robotics.

Language: Английский

Citations

73

Skin-Friendly and Wearable Iontronic Touch Panel for Virtual-Real Handwriting Interaction DOI
Ruidong Xu,

Minghua She,

Jiaxu Liu

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(9), P. 8293 - 8302

Published: April 19, 2023

Touch panels are deemed as a critical platform for the future of human–computer interaction and metaverse. Recently, stretchable iontronic touch have attracted attention due to their superior adhesivity human body. However, such adhesion can not be named "real wearable", leading discomfort wearer, rashes or itching with long-time wearing. Herein, skin-friendly wearable textile-based panel highly touch-sensing resolution deformation insensitivity is designed based on an in-suit growing strategy. This endows excellent interfacial hydrophilic biocompatibility skin by overcoming bottlenecks hydrogel-based uncomfortable sticky interface low mechanical behavior. The developed enables handwriting good capacity (114 MPa), nearly 4145 times higher than pure hydrogel. More importantly, our possesses intrinsic wide external loading from silver fiber (<0.003 g) even heavy metal block (>10 kg). As proof concept, applied interaction, flexible keyboard sketchpad. qualitities helpful next-generation electronics.

Language: Английский

Citations

69

Flexible and Transparent Electronic Skin Sensor with Sensing Capabilities for Pressure, Temperature, and Humidity DOI

Liangren Chen,

Youquan Xu,

Yinfeng Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(20), P. 24923 - 24932

Published: May 9, 2023

Inspired by the interlocked biological geometry of human skin, herein, we design a flexible and transparent sensor with square column arrays composites Ag nanoparticles (AgNPs), citric acid (CA), poly(vinyl alcohol) (PVA), which exhibit multisensory capabilities for pressure, temperature, humidity. As pressure sensor, AgNPs/CA/PVA possesses high sensitivity (-1.82 kPa-1), low detection limit (10 Pa), fast response (75 ms), outstanding stability due to contact resistance pressure. Because rigid dependence composite on can also act as temperature exhibits resolution (0.1 °C) reliability in detecting ambient temperature. In addition, it is found that amount water molecules adsorbed PVA CA changes Therefore, able detect humidity real time. This work proposes simple but useful route fabricate electrical skin has great potential perception

Language: Английский

Citations

57

Micropyramid Array Bimodal Electronic Skin for Intelligent Material and Surface Shape Perception Based on Capacitive Sensing DOI Creative Commons
Hongsen Niu, Wei Xiao, Hao Li

et al.

Advanced Science, Journal Year: 2023, Volume and Issue: 11(3)

Published: Nov. 29, 2023

Abstract Developing electronic skins (e‐skins) that are comparable to or even beyond human tactile perception holds significant importance in advancing the process of intellectualization. In this context, a machine‐learning‐motivated micropyramid array bimodal (MAB) e‐skin based on capacitive sensing is reported, which enables spatial mapping applications (proximity and pressure) implemented via fringing iontronic effects, such as contactless measurement 3D objects contact recognition Braille letters. Benefiting from effect single‐micropyramid structure, MAB pressure mode yields impressive features: maximum sensitivity 655.3 kPa −1 (below 0.5 kPa), linear 327.9 (0.5–15 an ultralow limit detection 0.2 Pa. With assistance multilayer perceptron convolutional neural network, can accurately perceive 6 materials 10 surface shapes training learning using collected datasets proximity modes, thus allowing it achieve precise different within one proximity‐pressure cycle. The development opens new avenue for robotic skin expansion advanced applications.

Language: Английский

Citations

52

Recent progress in textile-based triboelectric force sensors for wearable electronics DOI

Chongfan Hu,

Fei Wang, Xihua Cui

et al.

Advanced Composites and Hybrid Materials, Journal Year: 2023, Volume and Issue: 6(2)

Published: March 20, 2023

Language: Английский

Citations

49

Transparent, self-adhesive, highly environmental stable, and water-resistant ionogel enabled reliable strain/temperature sensors and underwater communicators DOI
Han Wang,

Yanya Mao,

Dan Ji

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 471, P. 144674 - 144674

Published: July 12, 2023

Language: Английский

Citations

48

Ultrafast piezocapacitive soft pressure sensors with over 10 kHz bandwidth via bonded microstructured interfaces DOI Creative Commons
Yuan Zhang, Xiaomeng Zhou, Nian Zhang

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: April 8, 2024

Abstract Flexible pressure sensors can convert mechanical stimuli to electrical signals interact with the surroundings, mimicking functionality of human skins. Piezocapacitive sensors, a class most widely used devices for artificial skins, however, often suffer from slow response-relaxation speed (tens milliseconds) and thus fail detect dynamic or high-frequency vibrations. Here, we show that contact-separation behavior electrode-dielectric interface is an energy dissipation process substantially determines time sensors. We reduce response relaxation ~0.04 ms using bonded microstructured effectively diminishes interfacial friction dissipation. The high allows sensor vibrations over 10 kHz, which enables not only force detection, but also acoustic applications. This shows negligible hysteresis precisely track stimuli. Our work opens path promote piezocapacitive into submillisecond range extend their applications in range.

Language: Английский

Citations

42

An overview of flexible sensors from ionic liquid-based gels DOI
Xihua Cui,

Yangbin Xi,

Shiwen Tu

et al.

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 174, P. 117662 - 117662

Published: March 23, 2024

Language: Английский

Citations

28

Cellulose nanofiber/MXene/AgNWs composite nanopaper with mechanical robustness for high-performance humidity sensor and smart actuator DOI

Mimi Han,

Wenhao Shen,

Xin Tong

et al.

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 406, P. 135375 - 135375

Published: Feb. 5, 2024

Language: Английский

Citations

25

Convolutional Neural Networks‐Motivated High‐Performance Multi‐Functional Electronic Skin for Intelligent Human‐Computer Interaction DOI

Shixiang Wu,

Hao Kan, Jianqiang Gao

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 122, P. 109313 - 109313

Published: Jan. 20, 2024

Language: Английский

Citations

22